Constructional material



Patented Oct. 11, 1932 UNITED STATES.

PATENT OFFICE ALBERT o. EIscHEn, or onrcaeo, ILLINOIS, AssIenoE TO THE PHILIQ/ CAREY MANUFACTURING COMPANY, A conronnrron or 01:10

CONSTRUGTIONAL MATERIAL No Drawing. Original application filed December 26, 1925, serial No; 77,684. Divided and this application filed September 10, 1927. Serial 86. 218,864,

) suitable mechanical mixer which is steam jacketed, and the mass is conveyed to the chamber of an extruding machine so that the warm fibrated mass is directly extruded into flat premoulded strips of desired crosssection and dimension, Mechanical mixers are those readily known to-the art, as are the extruding contrivances.

Usually when a mass of fibrated material is introduced between rollsa flow is set up 5 and the fibrous matter lays itself out in the direction of the flow, thus establishing a grain which is stronger longitudinally than it is crosswise. By my present invention the inter-mixture of the materials in a mechanical mixer, and the extrusion of the same while hot, forces the mixture out in a compressed state, thereby not permittin the linear fibers to flow relatively. to the inder, and the fibrous material will therefore be incorporated in an interlaced, intertwined, crisscross condition rather than in a grain-like forma tion or in a stratified formation. This will produce a preformed constructional mate-.' rial, such for instance as an expansion joint or rail filler, which is strong both in a ve'rtical direction and in a horizontal direction.

tic waterproofing binder, having linear fibers intermixed therein, said linear fibers being arranged in intertwined, interlaced, crisscross formation uniformly throughout the binder to reinforce the constructional material vertically and horizontally.

' 2. Preformed constructional material composed of an extruded, non-laminated intermixed ductile mass of bituminous material and linear fibers with the linear fibers arranged in interlaced, intertwined and crisscross condition uniformly throughout the bituminous material to reinforce same vertically and horizontally.'

'3. An expansion joint comprising an extruded, ductile non-laminated strip of bituminous material and linear fiber, intimately mixed together wherein the linear fibers are arranged in interlaced and crisscross position uniformly throughout the bituminous material to provide vertical and horizontal reinforcement in the strip.

4. A ductile non-laminated constructional material including an intermixed, extruded,

plastic mass of water roofing binder and linear fibers, said fibers eing arranged in interlaced, crisscross relation to reinforce the binder vertically and horizontally.

5. A ductile non-laminated constructional material including an intermixed extruded plastic mass of waterproof binder and linear fibers, said fibers being arranged in interlaced, crisscross relation to reenforce the binder.

Signed at Chicago, Illinois, this 8th day of September 1927.

ALBERT C. FISCHER.

The present case is a division of my co:-

pending application Serial No. 77,684, filed December 26, 1925 for method of'producing preformed material, in which the method is claimed. The present case relates to the article which may be formed by my method.

I claim:

1. Constructional material comprising an extruded, non-laminated ductile mass of plas- 

